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Shareholders' Equity - Additional Information (Detail) (USD $) In Millions, unless otherwise specified | 6 Months Ended | 0 Months Ended | 6 Months Ended
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May 31, 2013 | May 31, 2012 | May 31, 2013 Carnival Corp | May 31, 2013 Carnival plc | Jun. 24, 2013 Subsequent Event Carnival Corp | May 31, 2013 Repurchase Agreements [Member] Carnival Corp
Stockholders Equity Note [Line Items] |  |  |  |  |  |
Repurchase of Common Stock (in shares) |  |  | 0.9 |  |  | 2.8
Share repurchased, Value | $ 138 | $ 0 | $ 103 |  |  |
Stock Repurchase Program, Remaining Authorized Repurchase Amount |  |  |  |  | 975 |
Stock Issued During Period, Shares, Treasury Stock Reissued |  |  |  | 0.9 |  |
Sales of treasury stock | $ 35 | $ 0 |  | $ 35 |  |

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- Definition The cash outflow to reacquire common stock during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3291-108585 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 20 -Subparagraph a -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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